[INFO] updating cached repository https://github.com/googlecartographer/point_cloud_viewer
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/googlecartographer/point_cloud_viewer
[INFO] [stderr]  - [deleted]         (none)     -> feuerste/batches_everywhere
[INFO] [stderr]  - [deleted]         (none)     -> feuerste/ply_batch_iterator
[INFO] [stderr]    749fe27..317016e  master                  -> master
[INFO] [stderr]    6acce10..20bc2e2  nnmm/e2e_querying       -> nnmm/e2e_querying
[INFO] [stderr]    29a889d..fde6caa  nnmm/move_graphic       -> nnmm/move_graphic
[INFO] [stderr]    174eb9d..089f8c9  nnmm/terrain            -> nnmm/terrain
[INFO] [stderr]  * [new branch]      nnmm/terrain_layer      -> nnmm/terrain_layer
[INFO] [stderr]  * [new branch]      nnmm/terrain_read_write -> nnmm/terrain_read_write
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 317016e4aff5d977f204834caa257d43c912912d
[ERROR] this task or one of its parent failed!
[ERROR] command `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` failed
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.